66 



TREE ANCESTORS 



At the present time the bald cypress appears to be perceptibly 

 retreating southward, particularly at its northern limit of range 

 in southern Delaware and Maryland. Here are to be found traces 



Fig. 11. Map of Southeastern North America SHO\\^NG Present 



Northern Limits of the Bald Cypress and Its Occurrence in 



THE Pleistocene (solid circles) 



of trees where no longer live trees exist, although they appear to 

 thrive when artificially planted as in the parks of Baltimore and 

 Washington. Why they do not do so in Nature is a mystery, 



